I call that a "fishbowl exercise" where the point is to get people to realize that they can't really define things that they're inextricably tied to. Those are fun.
OK, not actually connected to the Word question, but there's a vaguely-linguistically-related question being posed over at grammargasm you might find interesting:
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|Meduza|
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http://community.livejournal.com/grammargasm/326611.html
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|Meduza|
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